Difference between revisions of "Text field"

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* [[Metadata]]
 
* [[Metadata]]
 
** [[Text field]]
 
** [[Text field]]

Revision as of 16:33, 10 January 2007

EPrints 3 Reference: Directory Structure - Metadata Fields - Repository Configuration - XML Config Files - XML Export Format - EPrints data structure - Core API - Data Objects

EPrints 3 Reference: Directory Structure - Metadata Fields - Repository Configuration - XML Config Files - XML Export Format - EPrints data structure - Core API - Data Objects


Metadata Fields: Arclanguage - Base64 - Bigint - Boolean - Compound - Counter - Dataobjref - Date - Decimal - Email - Fields - Float - Id - Idci - Image - Int - Itemref - Keywords - Langid - Longtext - Longtext_counter - Multilang - Multipart - Name - Namedset - Pagerange - Recaptcha - Relation - Search - Secret - Set - Storable - Subject - Subobject - Text - Time - Timestamp - Url - Uuid

Description

This is a very simple type of metadata field, which is used as a basis for several others.

It stores a string of text. The maximum possible length of the string is 255 bytes.

Note that 255 bytes does not mean 255 characters! UTF-8 can use 1 to 4 bytes to store a character. ASCII characters (a-z,0-9 etc) only use 1 byte so it will store 255 ASCII characters, but less of latin and much less of chinese.

Properties

name default description
sql_index 0 as for Metadata but with a different default.
text_index 1 as for Metadata but with a different default.

Required Phrases

None

Database

Text fields are stored in the database as

fieldname VARCHAR(255)